Mini float switches

A miniaturised Reed float switch to be used as a reliable overfill prevention device. They  are potential-free and are based on a very simple yet tried-and-tested technology. The compact design of the mini float switches allows for reliable level detection in the smallest of containers.

The value-for-money mini float switches are prefabricated and available directly from stock in a wide range of materials. They can also be customised to meet customer requirements.

Schwimmerschalter Mini
  • Available from stock
  • Cost-effecitve
  • Customer-specific electrical and mechanical connections
  • Miniaturised design
  • Available in an optional food design (electropolishing process)
  • Available in an optional EX design
  • Reliable
  • Free from wear and tear and no maintenance required
  • Simple installation
  • No programming necessary
  • Potential-free contact


  • Mechanical connections

    G1/8", G1/4", PG7
    (optional incl. counter nut)

  • Mechanical materials

    PVC, PP, PVDF, stainless steel and brass

  • Float materials

    PVC, PP, PVDF, stainless steel and Buna

  • Float dimensions

    Ø 16–27 mm

  • Tube dimensions

    Ø 8 mm

  • Sensor length

    30–63.5 mm

  • Installation types

    From the inside

  • Installation position

    Max. 30°

  • Number of switchpoints


  • Electrical connections

    Cable, plug-in connector or as per a specific customer request

  • Cable materials

    PVC, PUR, silicone, Teflon, FEP or as per a specific customer request

  • Switching functions

    Normally closed (NC) or normally open (NO). Change by rotating the float.

  • Max. switching capacity

    10 W

  • Max. switching voltage

    25 VAC, 50 VDC (optional 230 VAC)

  • Temperature range

    -20°C to 85°C
    (dependent on the float and the material)

  • Pressure range

    Must not be used as a safety-relevant limiting device within the pressure range. P max. upon request; the pressure range is always dependent on the float.

  • Protection class

    IP 67

  • Approvals

    EX design, food (electropolishing process)

  • Assembly

    Can be installed in assemblies

  • Note

    The sensors are based on a modular design and can be assembled individually.

Peter Schmid
Technical Sales

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